On Tue, 2004-07-20 at 20:12, Walsh, Bryan wrote: > Even if you use radvd, your server will always get the same IPv6 address.
Unless your radvd breaks as then your server will also loose it's address. Then again if radvd breaks the router is probably down. <SNIP> > Regarding your second question, I've seen people just use /64's for > everything, even point to point links. I think this is wasteful, but thats > probably a personal opinion. There is nothing keeping you from configuring a > /127 if you like. I do this all the time testing ptop links. a /127... that is definitly a nono, what about anycast? Let's say you use: Local: 2001:db8::0/127 Remote: 2001:db8::1/127 Then on the local machine you will have the following routes: 2001:db8::0/128 lo 2001:db8::1 gif1 but on the remote machine you will have: 2001:db8::0/128 lo 2001:db8::1/127 gif1 Guess which host you are not able to reach ;) Also read: http://www.linux-ipv6.org/ml/usagi-users/msg02432.html Thus if you really think that a /64 is too much for a PtP link then I first wonder what size of an allocation you have (a single /48 contains 65535 /64's) and secondly if you really really want to do it then just at least use /126's. Notez bien that if you pass out a /126 it is prolly coming from a /64, thus you have 2^(64-2) PtP links to create... Greets, Jeroen
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